It's easy. Man there were and are no controversies.

I'm speaking about what happened in the Cretaceous period (the last of the Dinosaurs), and the consequential decision of the modern predicament of Man.

Check the link about the time after the break-up of Pangaea, and before the pandemic disaster of extinction of the dinosaur. Now we are waiting for the results of changing the gravitational constant and nuclear decay constant of this mind effecting time(Heu..uh, wrong; lazy environmentalists??):


http://www.ucmp.berkeley.edu/mesozoic/cretaceous/cretaceous.php